Beefy Boxes and Bandwidth Generously Provided by pair Networks
The stupid question is the question not asked

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
I think that the best way is to load your file into a hash (each IP as a key, the hash value doesn't matter), close the file; then add each IP in your array to the hash (a hash will remoce duplicates anyway); once you've finished that, just write the hash keys (i.e. unique IP addresses) to a file (or to the same file if you're confident that it works OK).

A quick untested example:

open my $IN, "<", $awsLists or die "could not open $awsLists $!"; my %hash = map { chomp; $_ => 1 } <$IN>; close $IN; chomp @command; # just in case you need it. Note: you could choose a b +etter name for your array $hash{$_} = 1 for @command; open my $OUT, ">", "$awsLists.out" or die "could not open $awsLists.ou +t $!"; print "$_\n" for keys %hash; close $OUT;
Using a hash lookup will be usually be much faster than greping your file or its content many times.

In reply to Re: String searching in file by Laurent_R
in thread String searching in file by cbtshare

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others avoiding work at the Monastery: (2)
    As of 2020-10-24 15:46 GMT
    Find Nodes?
      Voting Booth?
      My favourite web site is:

      Results (245 votes). Check out past polls.